recently, a new patch is merged[0]. It adds neutron and horizon itself into upper-constraints.txt. But this will break installing horizon and neutron with upper-constraints.txt. Now it breaks the kolla's master branch patch. And have to remove the "horizon" and "neutron" in the files. check[1][2]. The easier way to re-produce this is git clone https://github.com/openstack/horizon.git cd horizon pip install -c https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt . So the question is, is this expected? if so, what's the correct way to install horizon develop branch with upper-constraints.txt file? [0] https://review.openstack.org/#/c/550475/ [1] https://review.openstack.org/#/c/549456/4/docker/neutron/neutron-base/Dockerfile.j2 [2] https://review.openstack.org/#/c/549456/4/docker/horizon/Dockerfile.j2 -- Regards, Jeffrey Zhang Blog: http://xcodest.me -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20180316/370f3524/attachment.html>